Army Command Sgt. Maj. John Wayne Troxell, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, and his 24-member Defense Senior Enlisted Leader Council listen to a presentation by the U.S. Customs and Border Protection’s Joint Task Force West command center in Tucson, Ariz., Aug. 14, 2018. The use of technology is critical to patrol officers, who can scan entire 18-wheel vehicles for contraband. DoD photo by Army Master Sgt. Rob Couture